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Merge pull request #1462 from ap-wtioit/master-improve_nginx_error

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nginx_error: support custom log format with awk scripts
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Kenyon Ralph 2024-10-29 10:26:43 -07:00 • committed by GitHub
commit 6263e178e1
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1 changed files with 13 additions and 8 deletions
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21
plugins/nginx/nginx_error
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@ -15,18 +15,18 @@ Any host running nginx, with bash version > 4.0
=head1 CONFIGURATION =head1 CONFIGURATION
This shows the default configuration of this plugin. You can override This shows the default configuration of this plugin. You can override
the log file path and the logpattern. the log file path, the logpattern and the awk_script.
Additionally you may want to adjust 'group' (or 'user') based on the Additionally you may want to adjust 'group' (or 'user') based on the
permissions required for reading the log file. permissions required for reading the log file.
[nginx_error] [nginx_error]
group adm group adm
env.logpath /var/log/nginx env.logpath /var/log/nginx
env.logpattern a.*.log env.logpattern a.*.log
env.awk_script {print $9}
Nginx must also be configured to log accesses in "combined" log format (default)
Nginx must also be configured to log accesses in "combined" log format (default) or the awk_script adapted for your log format
=head1 USAGE =head1 USAGE
@ -60,6 +60,9 @@ None known.
=head1 VERSION =head1 VERSION
1.2 - 2024/10/29
* add env variable awk_script to support other log formats
1.1 - 2018/01/20 1.1 - 2018/01/20
* add 'dirty config' capability support * add 'dirty config' capability support
* fix shell style issues reported by shellcheck * fix shell style issues reported by shellcheck
@ -101,6 +104,8 @@ else
fi fi
log="$logpath/$log_filename" log="$logpath/$log_filename"
# shellcheck disable=SC2016
awk_script=${awk_script:-'{print $9}'}
# declaring an array with http status codes, we are interested in # declaring an array with http status codes, we are interested in
declare -A http_codes declare -A http_codes
@ -122,7 +127,7 @@ http_codes[503]='Service Unavailable'
do_fetch () { do_fetch () {
local count status_code local count status_code
declare -A line_counts declare -A line_counts
values="$(awk '{print $9}' "$log" | sort | uniq -c)" values="$(awk "$awk_script" "$log" | sort | uniq -c)"
# Log files may be empty due to logrotation # Log files may be empty due to logrotation
if [ -n "$values" ]; then if [ -n "$values" ]; then
while read -r count status_code; do while read -r count status_code; do